noun
Refers to one's physical body or one's personal circumstances/fate. Often used in set phrases like 身空に余る (more than one deserves) or 身空がいい (fortunate).
こんな大役は私の身空に余ります。
This important role is more than I deserve.
彼は身空がいいから、いつも助けられている。
He is fortunate, so he always gets help.
Compound of 身 (body, oneself) and 空 (empty, sky). The exact historical derivation is uncertain; the word may have originally referred to one's physical frame or state of being.